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Roads & Airports Department
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Mission Statement:

The mission of the Roads and Airports Department is to preserve, operate, and enhance the County's expressways, unincorporated roads, and three general aviation airports in a safe, timely and cost-effective manner to meet the needs of the traveling public.   

The County's Roads and Airports Department  operates and maintains 62 miles of expressway and 635 miles of rural and urban roadways in unincorporated areas, including 23 miles of sound walls, 168 bridges, 39 miles of carpool lanes, 164 signalized intersections, 4,500 street lights, 25,000 regulatory signs, and 2,185 drain inlets. It also operates and maintains the County's three general aviation airports at Reid-Hillview, Palo Alto and South County — comprised of 7 miles of runways and taxiways, 145 aircraft hangars, 648 open aircraft tie-down storage spaces.

Click here to view the Santa Clara County Official Road Book, showing all road sections within the County of Santa Clara maintained roads system. Current information regarding short-term County road closures and lane restrictions is available by calling the County's HOT LINE at 408-494-1382.   


NEWS - Recent Features 

Construction Update: 10/8/15Phase 1 of the pavement overlay between El Camino and Highway 237 is complete.  Phase 2 of the pavement overlay between El Camino and Highway 237 that covers the roadway from curb to curb is ongoing. The methodology dictates that the section between El Camino and Highway 101 will be completed before Highway 101 and Highway 237 begins.

Concrete work for pedestrian ramps is ongoing.  Crack sealing between Homestead and Saratoga Ave is ongoing.

Our contractor began what will be about 2 weeks of Cold In Place Recycling (CIR) between El Camino and Homestead Rd.  This task is scheduled to finish Tuesday, October 13th.  Followed by a 2" overlay beginning on October 26th. 

There is loose gravel on the expressway and there is a HAZE between El Camino and Homestead Rd.  This is caused by dust (generated from pavement grinding) getting picked and distributed by the commuting traffic. The contractor is sweeping to keep up with the temporary condition.  

Lawrence Expressway Pavement Rehabilitation Project -The project provides for pavement repair & rehabilitation on a segment of Lawrence Expressway between Homestead Rd. and Highway 237 and crack sealing between Saratoga Ave and Homestead Rd. 
The project duration, weather permitting, is programmed for 2.5 months finishing mid November.
The work will include:

• Roadway excavation,
• Pavement repair,
• Crack sealing (between Homestead Rd and Saratoga Ave)
• Cold foam In place Recycling (CIR) between Homestead Rd and El Camino Real with pavement overlay
• Type II & Type III micro-surfacing between El Camino real and Hwy 237,
• Removal and replacement of curb and gutter,
• Removal and replacement of B3 curb removal
• Removal of concrete (sidewalk and pedestrian. ramps)
• Construction of ADA curb ramps,
• Retrofit of ADA curb ramps,
• Sidewalk construction
• And replacement of traffic stripes, pavement markings, pavement markers.


Foothill Loyola Press Release  Loyola overpass along Foothill Expressway at A Street in Los Altos under construction beginning April 13, 2015.  Lane closures on Foothill will be in effect 24 hours a day for approximately 9 months. Expect delays and long peak period queues.  Commuters encourage to travel off peak or use other arterials. For more information please visit project website.  


 Old Santa Cruz Hwy and SR-17 Slope and Drainage Repair Project - The California Department of Transportation (Cal-Trans) will begin to repair drainage and stabilize gully down slope separating State Route 17 at post mile 1.6 and Old Santa Cruz Highway just north of Redwood Estates starting Monday, October 5th, 2015.  For project questions please contact: Bernard Walik at (510) 286-5705 or email at: